Weather strip



p 1941- I A. J. MAYER WEATHER STRIP Filed April 24, 1939 Patented Sept. 16, 1941 UNITED STATES PATENT OFFICE WEATHER STRIP Adolph J. Mayer, La Grange, Ill.

Application April 24, 1939, Serial N0. 269,720

v 6 Claims.

My invention relates to a new and improved weather strip for sliding sash windows.

Many types of weather strip now in use require special grooving or shaping of the sash which is usually done on the job and consequently involves considerable labor and expense in its installation.

An object of the present invention is to provide a new and improved. type of weather strip.

A further object is to provide a weather strip,

which may be installed without shaping the sash or frame.

A still further object is to provide a weather strip which at the same time acts as a guide for the sash.

Other objects and advantages will appear as the description proceeds.

A complete understanding of the invention may be had by reference to the following description taken in conjunction with the accompanying drawing, in which- Fig. 1 is a longitudinal or vertical section through a window provided with weather strip embodying the invention;

Fig. 2 is a cross sectional view taken on line 2-2 of Fig. 1; and

Fig. 3 is a fragmentary side view showing a detail of weather strip on the face of the parting strip.

Referring now more in detail to the drawing a lower sash 5 and upper sash I are shown mounted in a window frame. Each side of the window frame may consist of a jamb 8, a parting strip 9 preferably set into a groove cut into the jamb, and strips II and I2 forming runways for the window sashes.

Attached to the jamb in each of the runways is a resilient member l3 having a curved surface forming two longitudinal beads with a groove between them. One side of this member is attached to the jamb as shown at l0 and the other side is free and unattached and tends to extend away from the jamb. The member I3 is made narrower than the runway between the parting strip 9 and stop l0 so as to be free to expand laterally, that is, in width, when pressure is exerted thereon.

Attached to each of the window sashes is a resilient member M which also has a curved surface forming a central bead and of such configuration as to yieldingly interfit with a resilient member [3. The members M are attached only along one side to the sashes and tend to extend away from the sash when not compressed. It

side opposite the side on which the members l3 are attached, and the members M are also made narrower than the sashes so that they may expand laterally when compressed. It will be noted that the members l3 and 14 form at least in a portion through their width gradual or sinusoidal curves with interfitting concave and convex surfaces. The invention is not limited to any-particular degree of transverse curvature, that is the grooves and beads formed may have various depths and the curvatures are preferably so chosen that with the lateral expansibility of the resilient members the sashes may be snapped into or out of the frame with the resilient members attached as described above. In this way an effective weather seal is formed between the sash and jamb, and the members at the same time form a guide for the sashes so that the stops II and I2 serve chiefly an ornamental purpose to conceal the weather strip. In fact, it is one of the outstanding advantages of this construction that the members l3 and I4 form a dependable and effective weather seal and guide without requiring any grooving or shaping of the sides of the window sashes, or accurate fitting of the sashes in the frames, and in damp weather the yieldability of the resilient members prevents the sashes from binding.

The shape of the resilient member l4 also makes it unnecessary to groove the window sash for the sash cord l5 which may be attached to the sash in any suitab-le way and lies under the bead in member 14. Above the window the sash cord lies in the groove between the beads on member 13 and passes over one of the pulleys to a sash weight not shown.

The portion of the parting strip projecting from the jamb is faced with metal as shown at l6, so that all parts in sliding engagement have metal to metal contacts. Each of the sashes where it is cut out to receive the parting strip has an undulated resilient strip ll secured thereto, and a resilient strip 18 is attached to the parting strip at the point where the sashes overlap when the window is closed, in which position it engages both sashes. The area around the parting strip may be additionally sealed by providing a plate 2| secured to the top of the lower sash and fitting close to the parting strip. A similar plate 22 may also be secured to the lower part of the upper sash.

In order to seal all sides of the sashes, resilient strips 23 and 24 are provided at the top and bottom of the window respectively, and a similar is preferable to attach the members I4 on the strip 25 is provided at the central joint. It will be noted that all contacts between the sash and frame are metal to metal, which, together with the structural features of the invention, eifec tively prevents sticking or binding in damp weather. 7

While a particular embodiment of the invention has been described and illustrated, it will be understood that many-changes and modifications may be made therein without departing from the spirit and scope of the-invention.

What is claimed is:

1. A window construction having a combined sash guide and Weather strip comprising a sash and jamb having plane adjacent surfaces, a resilient undulating strip attached at one edge to the sash and overlying the edge of the sash,

a corresponding cooperating resilient undulating strip attached to the jamb, said strips being shaped to yieldingly interfit, and the height of the undulating curvature being less than the dis tance between the sash and jamb to permit ready assembly of the sash and jamb with the strips attached.

2. A window construction having a combined sash guide and weather strip comprising a sash and 'jamb having a space between them, an undulating resilient strip attached to the sash and overlying the edge of the sash, a corresponding undulating resilient strip attached to the jamb cooperating with the strip attached to the sash,

the altitude of the curvature of said strips being less than the distance between the sash and J'amb whereby the sash and jamb may be assembled with the strips attached.

3. A window construction having a combined sash guide and weather strip comprising a sash and jamb, an undulating resilient strip attached.

along one edge to the sash and extending across the edge, the other edge of the stripbeing unat- P strip attached to the jamb, the adjacent sides of the sash and jam-b being plane surfaces and the altitude of the sinusoidal curvature being less than the distance between the sash and jamb.

5. A window construction having a combined sash .guide and weather strip comprising a sash and jamb, a transversely sinusoidal resilient strip of slightly less Width than the width of the edge face of the sash attached to the edge of the sash, a second similar cooperating transversely sinusoidal strip of substantially the same width attached to the jamb, the height of said curvature of the strips being less than the greatest distance between the sash and jamb, permitting assembly of the sash and jamb with the strips attached.

6. A window construction having a combined sash guide and weather strip comprising a sash and jamb, a transversely sinusoidal resilient strip attached to the sash and extending substantially over the face of the edge, said strip having a crest extending away from the sash to receive a balancing means for the weight of the window, a balancing means extending into the space under said crest in the strip, and a similar cooperating strip attached to the jamb.

ADOLPH J. MAYER. 

